# name : gridtext textbox_grob, Draw (markdown/html) formatted text labels (no plotmath)
# key : gridtext.textbox_grob
# key : textbox_grob@gridtext
# contributor : Shuguang Sun
# --
textbox_grob(
  ${1:text for single box},
  x = NULL,
  y = NULL,
  orientation = c("upright", "left-rotated", "right-rotated", "inverted"),
  name = NULL,
  use_markdown = TRUE)